Updates to the fixed module#2779
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| `a \in [1/B, 1)` with `an` fraction limbs, sets `(q, n+2)` to an | ||
| approximation of `1/a \in (1, B]` with `n` fraction limbs and two |
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What is B? And isn't it supposed to be a \in [1 / 2, 1)?
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B = 2^FLINT_BITS.
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Follow up #2778 with some major improvements:
fixed_inv_newton,fixed_div_newton,fixed_rsqrt_ui_newton,fixed_rsqrt_newton,fixed_sqrt_newton- Newton-based division and square root code, ported fromradix, asymptotically faster than the GMP functions, used internally at high precisionNew timings for exp and sin_cos (both got up to 50% or so faster at high precision):